Vacuum tubes of a radio



FIG. 1 is a top plan of vacuum tubes of a radio showing my new design;

FIG. 2 is a left side elevational view thereof; and,

FIG. 3 is a right side elevational view thereof.

The broken lines are for illustrative purpose and form no part of the claimed design. 

I claim the ornamental design for a vacuum tubes of a radio, as shown and described. 